[Bug c/97274] Need ability to ensure no warning about tmpnam

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97274

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The linker issues the warning, because the symbol in glibc is annotated to
cause a warning. It has nothing to do with GCC.